aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/char/tty_io.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/tty_io.c')
-rw-r--r--drivers/char/tty_io.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 48d795bb8c4b..811dadb9ce3e 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -543,14 +543,12 @@ void tty_ldisc_put(int disc)
543 struct tty_ldisc *ld; 543 struct tty_ldisc *ld;
544 unsigned long flags; 544 unsigned long flags;
545 545
546 if (disc < N_TTY || disc >= NR_LDISCS) 546 BUG_ON(disc < N_TTY || disc >= NR_LDISCS);
547 BUG();
548 547
549 spin_lock_irqsave(&tty_ldisc_lock, flags); 548 spin_lock_irqsave(&tty_ldisc_lock, flags);
550 ld = &tty_ldiscs[disc]; 549 ld = &tty_ldiscs[disc];
551 if(ld->refcount == 0) 550 BUG_ON(ld->refcount == 0);
552 BUG(); 551 ld->refcount--;
553 ld->refcount --;
554 module_put(ld->owner); 552 module_put(ld->owner);
555 spin_unlock_irqrestore(&tty_ldisc_lock, flags); 553 spin_unlock_irqrestore(&tty_ldisc_lock, flags);
556} 554}
@@ -645,8 +643,7 @@ void tty_ldisc_deref(struct tty_ldisc *ld)
645{ 643{
646 unsigned long flags; 644 unsigned long flags;
647 645
648 if(ld == NULL) 646 BUG_ON(ld == NULL);
649 BUG();
650 647
651 spin_lock_irqsave(&tty_ldisc_lock, flags); 648 spin_lock_irqsave(&tty_ldisc_lock, flags);
652 if(ld->refcount == 0) 649 if(ld->refcount == 0)